Functional endoscopic sinus surgery (FESS) is widely recognized as a safe and preferred treatment option for various conditions, particularly nasal polyps and rhinosinusitis . This technique has been shown to improve postoperative symptoms by 86.3% in patients with chronic inflammatory paranasal sinus diseases .
The aim of this study is to evaluate the effect of adding of MgSO4 to bupivacaine via SPGB block for postoperative pain for 24 hours in patients scheduled for FESS as opioid free anaesthesia.
• Patients programmed for elective FESS
American society of anaesthesiologists (ASA) physical state I-II
Age over 18 years and less than 60-years-old.
• Known hypersensitivity to the study drugs.
Inability to accurately describe postoperative pain to investigators.
Opioid tolerance or dependence.
Patient refusal
Parallel
Bupivacaine
Drugpatients will receive SPGB block with 2 ml volume on each side (1.5 mL of bupivacaine 0.5% + 0.5 mL of magnesium sulphate 10%).
Magnesium Sulphate 500 mg
Drugpatients will receive SPGB block with 2 ml volume on each side (1.5 ml bupivacaine 0.5% plus 0.5 ml saline).
postoperative pain according to (NRS)
The effect of adding of MgSO4 to bupivacaine via SPGB block for postoperative pain according to (NRS) for 24 hours in patients scheduled for FESS
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